Pattern Proposal: Typed Compliance Synthesis Contract

Summary

Enforces strict Pydantic schemas on compliance evaluations produced during architectural reviews.

Candidate Pattern

• ID: typed-compliance-synthesis-contract
• Classification: governance
• Maturity: established
• Type: implemented

Observed Signals

No specific signals listed.

Evidence

Supporting Evidence

• src/cas_runner/governance/compliance_engine.py (ComplianceEngine) - Evaluates compliance against schema definitions
• src/cas_runner/governance/models.py (ComplianceFinding, ComplianceMetrics, TraceableMetric) - Strongly typed models for evaluation outputs

Scope Assessment

• Evidence Strength: high
• Confidence: high
• Applies to: ideas-to-life-cas

Rationale

• Intent: Convert subjective agent reviews into typed, actionable evaluation metrics.
• Context: Executed during automated pull request checks or scheduled governance reviews.
• Force: Free-form LLM evaluation reports cannot be parsed reliably by downstream CI tooling
• Force: Evaluation findings must trace to specific repository rules and severity levels

Traceability

Artifact source: proposed-patterns